【单选题】--- Is Mr black really ill? ---_________. He’s in hospital.
【单选题】— Is Mr. Green really very ill? —______. He has to stay at home for a good rest.
【单选题】------“is Tom really very ill” ----- “__________,He is in hospital.”
【简答题】用电负荷可分为哪三类?各类负荷分别要采取什么形式的供电方式供电?
【多选题】视频展示台能够将下列哪些内容转换成视频信号,呈现到屏幕上()。
【单选题】—Is your uncle really very ill? —_______. He’s in hospital.
【多选题】视频展示台能够将下列哪些内容转换成视频信号,呈现到屏幕上( ) 。